Propeller.



A. S. WARREN.

PROPELLEB.

APPLICATION FILED mAY eIIeIs.

Patented Mar. 4,1919.

4 SHEETSSHEET 1.

A. S. WARREN.

PROPELLER. I

APPLICATION FILED MAY 16. I9I8.

1,2963%; 1 Patented Mar. 4,1919.-

4 SHEETS-SHEET 2.

A. S. WARREN.

PROPELLER.

APPLICATION, FILED MAY 1a, 1918 1,296,242, Patented Mar. 4,1919.

4 SHEETS-SHEET 3.

A. s. WARREN.

PROPELLER.

APPLICATION men MAY 16, 19:8.

Patented Mill. 4,1919.

4 SHEETS-SHEET 4.

I struction and unique combinations of parts to be hereinafter described and-claimed, the

descriptive matter being supplemented by ALVA SMITH WARREN, or BATAVIA, NEW YORK.

IPROPELLER.

To all whom it may concern:

Be it known that I, ALVA s. WARRErT, a

citizen of the United States, residing at Bastructure;

tavia, in the county of Genesee and State of New York, have invented certain new and useful Improvements in Propellers; and I do declare the following to be a full, clear, and exact description of the inventiomsuch as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements'in propellers used for driving boats or'employed for :operating'other machinery, in which case the propeller is driven by water power.

One object of the invention is to provide a propeller of the endless chain type which may be easily and inexpensively manufactured and installed, yet one which will be highly efficient and durable.

Another object is to provide a novel frame structure including parallel front and rear side bars which carry part of the chain guiding means and at the same time coact with retaining bars in securing the entire de- Vice against longitudinal shifting.

Yet another object is to provide a pair of ledges for supporting the entire structure in a water passage, and to make provision whereby these ledges constitute tracks coacting with other tracks carried by the frame to retain the paddles of the endless chain structure in operative position while moving in one direction. p

A still further" object is to improve upon 'the construction of the paddles,'and their mounting and guiding means.

With the foregoing objects in view, the invention resides in the novel features of conthe accompanyingdrawingswhich form a part of this specification and in which:

Figure lis a side elevationof the propeller installed upon a boat;

- Fig. 2 is a longitudinal section of the machine arranged as shown in Fig. 1; c

F igs. 3 and 4 are respectively 'horizontal and transverse sections on the planes indicated by'the lines '33 and 44 of Fig. 2;

Fig. 5 is a detail perspective view of a portion of oneof the paddles; g

Fig. 6 is a planview'of aportion of one Specification of Letters Patent.

' Patented Mar. 4, 1919.

Application filed May l6, 1918. Serial No. 234,982.

.Fig. 7 is a detail section on the plane of the line 77 of Fig. 6.

Fig. 8 is a-perspectlve v1ew of the frame Fig. 9 is a perspective illustrating the manner in which the propeller may be stalled at a water fall or the like to be operated by the water power; and

- chine, C has reference to the endless chain structure, L refers to a pair of ledges upon which the frame Fis supported, and P designates a water passage in which the ledges L are secured and within which the entire machlne is mounted. The passage P may be in 'the form of a well at the rearend of a tunnel T formed in the bottom. of a boat B, in

which case the .chain structure 0 will be driven by power to propel the boat, or said passage may form part of a sluice or the like S asdepicted in Figs.9 and 10. When a sluice is used, it is suitably arranged in respeEt to. a waterfall or the like W,'so that water will be directed through the sluice to operate the machine by power, whereby/it 7 may be utilized for driving other machinery.

This arrangement is shown in Figs. 9 and 1 10, and as seen in Fig. 9, adrive shaft D may extend "from the propeller for carrying jpower therefrom, said shaft being driven- -from said 'propeller by means of beveled gears Gor other-suitable means. When the propeller is employed in connection with a sluice or the like, a gate valve V is preferably employed to control th Supply of water thereto. V

'Having briefly describedcertain features and thei'uses of the invention, its novel construction will now be entered into. To this end' the numerals 1 designate a pair of par- ."allel longitudinal side'beamseach preferably formedxof' uppenand lower parallel bars 2 secured between their. ends. to the opposite sides of blocks 3." Bearing blocks 4- are securedbetwe'en the bars 2 at one end thereof,

other bearing blocks 5 are slidable between the other ends of saidbars, and screws or the l like 6 are provided for adjusting the blocks- 5-longitudinall of the beams 1,.saidscrews beingyshown t 'readed: through additional blocks 7 secured between the ends of the-bars 2 :remote. from: the bearing blocks 4. Byv

4 5 that "these parts form effect a double track longitudinalftrack 25 is 'provided to position means of suitable roller bearings or the like 8, a pair of transverse shafts 9- have theirends rotatably mounted in the blocks 4 and 5, said shafts carrying sprocket wheels 10;"

around which the endless chain structure 0 is trained, said structure includingsa pair of side chains 11 of any preferred construction. A plurality of transverseshafts12- extend between the side chains 11 and have 10* their ends 'rotatably supported thereby, said shafts being provided near'their ends. with cross arms 13-and at 'points spaced outwardly from said cross arms, with cross heads 14, said; heads having hubs l5 spacing them from thearms 13 and'contactingiwith thelatter. Shoes or-rollers 16 are located between the cross headsand cross arms, and paddles 17 are clamped" between said cross arms on opposite sidesof the shaft 12, being preferably connected by transverse straps 18. The several parts-are heldin operative relation by means of-nuts -19-or other suitable heads 'threaded on the ends of the shafts 12 and bearingiagai nst the -outer sides of 'the cross heads 1l,"-these details being best illustratd in Figs, 6"and 7-.-

Extending across the outer sides of the side beams'l 'and'secured between their ends to the clocks 3, are front andrear parallel 1 'sideba-rs 20 disposed at right angle's to said beams l and 'preferablybraced together as seen at 21 The lower end's 'of theside bars 2'0 carry --upper tracks '22 beneath which the shoes 16 travel to retain the-paddles 17 in operative position 'as they move-in one direction, the ends of said tracks being turned upwardly-at'23 and provided With'rollers or thelik'e 24 which guide thefp'addles onto and fro'rr'rthe tracks; By" reference more particularly to Figs; 4 and S, it will beseen that the bars 20' extend a slight distancebelow the tracks 22 and thatthey restupo'ntheledges Ill By} this arrangement, the 'tracks' and ledges; are spaced apart 4 sufficiently to per- 'mit the shoes lti to travel ther-ebetween, so

for'tli'eshoes;

To insure that the paddles shall not offer resistance on their return travel, a central and i'etainsaid' paddles longitudinally of the up er reach of the chain structure" G. The

"en'dsof'track 25='a-re-"turned downwardlyat 26 to; guide- 'th'e 'p'addles "onto; and from said track asseen most clearly: in' Fig." 2; To

support the track 25, transverse bars :27 exten'd between and are secured" to the upper portions of the sidebars -20, said-transverse bars preferably having-r arch-ed centers 5 as seen infFig-i 4s. T'o carry"the-greater part of the-Weight I and fthul's prevent the :,-p*addles 7 from creating-='ia'" great amount of friction up'on tlie track- 25', ro'llers 2 8 are ipreferably provided; the side ch'ains ii -passing; over "isaidrollers as seenin Eig: 45: The?rollers in longitudinal :guide tracks. carried by one-end question are carried by longitudinal bars 29 whose ends are .secured to the side bars 20.

In addition to performing the functions .above described, the side bars 20 abut the inner sides of parallel retaining bars 30 which-aresecured in the passage P,whereby to hold the entire machine against longitudinal- 'shi ft'ing'and at the same time to permit easy removal thereof whenever required. The bars 20 and 30ma'y bebolted together if desired but in' most cases this is not necessary and since it renders the propeller rather hard to remove, this arrangement is-preferablyfinot used? By formingopenings 31in theupper ends of the side barsQO, grapples machinery. Since probably the best results are obtained from the details shown and described, they arez-bya-preference followed,

but within: the scope of the invention as claimed,- considerablelatitudeis allowed for making: suchminor changes as occasion-may dictate. T 1 l I V 1. A propeller comprisingfan 1 endless chain structure including pivoted paddles,

wheelsaround which said chain structure is" trained', a-pair of parallelside beams upon whose-ends SaJCl wheels are mounted, front and rear side bars extendingacross I and secured betweentheir ends& to said side beams, longitudinal guide tracks carried by one end of said bars for retaining the padone direction along saidtracks, transverse "bars extending-ibetween the other ends of said'iside' bars; and an additional, longitudinal track secured towsaid transverse bars for holding the paddles, ininoperative position astheytravel on their return pathv 2'; A propeller; comprising.- an endless chain 1 structure including pi'voted paddles, wheels--around;which said chain structure is trained, a pair vofparallel side" beamssupon whose" ends said wheels ware-mounted, front and rear side bars r extending iacrosseandrsecured 'between' their ends to said sideb'eams,

of said bars for; retainingthepaddles in --operative {position as -theyr travel :i-h' 'one direction along saidiitracks; and-additional ichain and 'zpaddleguiding means Zcarried by};

the other ends- 0f: saidsside-rbarssr dies in' operative position as they travel-in V 3. A propeller comprising an endless chain structure including pivoted paddles, wheels around which said chainstructure is trained, a pair of parallel side beams upon whose ends said wheels are mounted, front and rear side bars extending across and secured between their ends to said side beams, longitudinal guide tracks carried by one end of said bars for retaining the paddles in operative position as they travel in one direction along said tracks, and additional chain and paddle guiding means carried by the other ends of said side bars; together with a water passage in which the propeller is located, and parallel retaining bars secured in said passage and abutting said side bars to hold the device against longitudinal shifting.

l. A propeller comprising an endless.

chain structure including paddles, a frame on which said chain structure is mounted, said frame having transverse retaining bars at its sides, a water passage in which said frame is located, ledges in said passage on which said frame rests, said ledges serving as guiding means for said chain structure, and additional retaining bars secured in said passage and contacting with said first named bars to prevent longitudinal shifting of said frame.

5. In a propeller, a water passage, a frame positioned removably therein, an endless chain structure mounted on said frame and including pivoted paddles having shoes at their ends, and upper and lower tracks receiving said shoes therebetween to hold the paddles in operative position while traveling in one direction, the lower tracks being secured in said passage and the upper tracks being carried by and removable with said frame.

6. In a propeller a pair of parallel longitudinal side beams carrying wheels at their ends, an endless chain structure trained around said wheels and including pivoted paddles having shoes at their ends, front and rear side bars extending across and secured between their ends to said side beams, tracks carried by one end of said side bars,

chain guiding means carried by the other ends thereof, a water passage in which the propeller is disposed, other tracks secured in said passage and parallel with the first named tracks, the two sets of tracks receiving said shoes therebetween to hold said paddles in operative position as they travel in one direction, and retaining bars secured in said passage and abutting said side bars to hold the propeller against longitudinal shifting.

7. In a propeller, guide wheels, a pair of endless chains trained around the same, transverse shafts extending between said chains and mounted rotatably on the latter, cross arms of said shafts near the ends thereof, paddles between said cross arms on opposite sides of said shafts, cross heads spaced outwardly from said cross arms and having hubs mounted on said shafts and abutting said cross arms, heads on said shafts abutting the outer sides of said cross heads to retain all parts in place, rollers mounted be tween said cross arms and cross heads, and tracks which said rollers engage to retain the blades in operative position as they travelin one direction.

In testimony whereof I have hereunto set my hand.

ALVA SMITH WARREN. Witnesses:

WALTER A. WARREN, A. T. SANACOOL.

Copies ,0! this patent may be obtained forrfive cents each, by addressing the Commissioner of Patents, Washington, D. O. 

